ad hoc

[ad hok]

What does ad hoc mean?

Something ad hoc is put together on the fly for one narrow or pressing purpose. For example, a government committee arranged to address one specific problem, would be an ad hoc committee. More loosely, it can mean "spontaneous," "unplanned," or "on the spot."

Ad hoc is one of those Latin phrases loved by academic, law, and government types and literally means "for this (thing)."

Related terms:

Examples of ad hoc

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Examples of ad hoc
How does it feel to have 80% of your day going as planned and only 20% being ad-hoc / Anyone?
@Icarus_Reloaded, July 2018
The Registrar of Delhi University said on Monday that no assurance had been given or could be given by the Vice-Chancellor regarding the continuation of ad hoc teachers in the new session.
The Hindu, June 2018
Mammals sleep because they hate themselves. Human intelligence evolved thanks to alcohol. Fish are stupid because they’d be too sad if they knew how boring their lives were. These are a few of the asinine arguments from BAHfest, the festival of bad ad hoc hypotheses—or as the organizers put it “a celebration of well-argued and thoroughly researched but completely incorrect scientific theories.”
David Shultz, Science, October 2017

Where does ad hoc come from?

ad hoc
Quest IT

English borrowed the Latin ad hoc as early as the 1600s, when the learned expression was quickly being adopted into legal and judicial contexts.

Ad hoc spreads as a term in such contexts in the 1800s. A Lousiana Code of Practice for civil law from 1839, for example, lists the various situations where a person, such as a minor, may be assigned a curator ad hoc, a “caretaker for this purpose.” An 1869 judicial report from the state of New York, as another instance, describes the formation of ad hoc committees by the courts to investigate specific matters.


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Around the same time, ad hoc was spreading to other domains. The phrase ad hoc hypothesis began to appear in scientific writing. An ad hoc hypothesis is basically a scientific excuse, a logical fallacy. It’s when someone makes up a new complication to brush off evidence against their claim—like if you said there’s a little green alien following you around, and when everyone asked where it was, you said you only you could see it.

Of course not all ad hoc hypotheses are otherworldly. An 1894 article on color perception points out how two of the common theories of the time relied on an extra, unproven ad hoc hypothesis about the vibration of light waves. Today, there’s even a festival dedicated to ad hoc hypotheses, where scientists can blow off steam by making stuff up.


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In 1970, Alvin Toffler, the author of Future Shock, proposed that ad hoc organzations had some distinct benefits. Playing on political terms like democracy, Toffler proposed adhocracy (a slightly earlier coinage, from 1966) as a flexible organizational structure that could replace bureaucracy. Six years later, adhocracy was discussed in a business book aimed at administrators. An entire book on the subject followed in 1990, and the topic has since come up in the popular business in 2015.

In computing, an ad hoc network is a network of computers temporarily connected directly to other computers without a router or hub. Ad hoc networks were discussed in a communications journal in 1994, and there is currently an entire journal dedicated to the topic.


ahirlabs.com

Who uses ad hoc?

You’re often going to see ad hoc describing government committees and judges, which are called for special, express purposes. Most often you’ll see it preceding what it modifies, e.g., an ad hoc judge, but especially in legal settings, following it: judges ad hoc.

You’ll also see ad hoc in everyday settings, like an ad hoc train stop (unscheduled), an ad hoc job (working as needed), or an ad hoc movie set (improvised).

Ad hoc can be used to criticize an organization or event for being a little too loose or improvisational, though. The criticism is that it’s unstructured and wasn’t thought out.


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But some things are better off ad hoc. That might explain why Ad Hoc was chosen as the name of a music magazine and event planning group, a record label, a kitchen goods brand, and a restaurant where the menu is different every day. Ad Hoc is also the name of a company that makes software for the US government, playing on the idea of an ad hoc committee.

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